Fitness effects of two facultative endosymbiotic bacteria on the pea aphid, Acyrthosiphon pisum, and the blue alfalfa aphid, A. kondoi

By De-Qiao Chen, C. Montllor, A. Purcell. 2000

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The mid‐season crash in aphid populations: why and how does it occur? (2004, background): “Although the secondary bacteria are not required by the insect, they can influence aphid performance on certain plants (Chen et al., 2000), susceptibility to parasitoids (Oliver et al., 2003), and tolerance of elevated temperature (Montllor et al., 2002).”
Nine facultative endosymbionts in aphids. A review (2017, background): “For example, Rickettsia-infected A. pisum would have lower fitness on bur clover Medicago hispida Gaertn and sweet pea Lathyrus odoratus L. at 20℃compared to uninfected ones (Chen et al., 2000).”
Rickettsia influences thermotolerance in the whitefly Bemisia tabaci B biotype (2011, background): “Evidence for improved heat tolerance has been previously documented for A. pisum infected with S. symbiotica, which increased host fecundity under constant rearing at 25◦C (Chen et al., 2000) and under heat shock conditions (Montllor et al., 2002).”
The natural occurrence of secondary bacterial symbionts in aphids (2016, background): “Given the wide-ranging effects of aphid secondary symbionts on their host (Chen et al., 2000; Montllor et al., 2002; Oliver et al., 2003; Vorburger & Gouskov, 2011) and potential cascading effects on higher trophic levels (Frago et al.”